ci: Add Pre-release action to synchronize branches #1429

Job	Run time
Build Distribution Bundle	41s
Test Jest (16.x)	27s
Test Jest (17.x)	34s
Test Jest (18.x)	24s
Test Jest (19.x)	32s
Test Jest (20.x)	26s
Get Bundle Size from Master	9s
Get Bundle Size from Current Branch	22s
Core Tests / Core SDK Tests	1m 16s
Calculate Bundled Diff / Calculate Bundle Size Difference	9s
Generate Report	1s
Test Stub	33s
Integration Tests: Browserfy Common JS / Browserfy CJS Test	1m 6s
Integration Tests: Rollup Common JS / Rollup CJS Test	1m 1s
Integration Tests: webpack Common JS / webpack CJS Test	1m 11s
Integration Tests: Rollup Module JS / Rollup Module Test	1m 5s
Integration Tests: webpack Module JS / webpack Module Test	1m 6s
Integration Tests: Require JS / Require JS Test	48s
Save PR Number for Dependabot Automerge / Save PR Number for Dependabot Automerge	0s
	11m 51s

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